Inhibition effect of Tea (Camellia Sinensis) extract on the corrosion of mild steel in dilute sulphuric acid

The effect of green tea extract as an organic ʹgreenʹ inhibitor on the corrosion of mild steel in dilute sulphuric acid was studied at ambient temperature. Weight loss/corrosion rate and potential measurement techniques were used for the experimental work. The tea extract was obtained from the green tea leaves. The results obtained showed effective corrosion inhibition of the extract on the mild steel test specimens in the different concentrations of sulphuric acid used. There was no apparent significant difference in the corrosion inhibition performance of the selected extractʹs concentrations. The different acid strength used did not give any clear adverse corrosive effect on the performance of the inhibitor.